Hi, I'm getting a really annoying error: Error in <RootX11ErrorHandler>: BadWindow (invalid Window parameter) (XID: 71303271) I have used a lot of time trying to solve this. After some hours I minimized my code, now I only want to draw a simple window with one button, but it doesn't help. The constructor for my window looks like this: DetectorWidget::DetectorWidget(Detector *detector, const TGWindow* p, UInt_t w, UInt_t h) : TGMainFrame(p, w, h) { fCloseButton= new TGTextButton(this,"Close", CLOSE_BUTTON); fCloseButton->Associate(this); AddFrame(fCloseButton); MapSubwindows(); MapWindow(); } What is wrong? The weird thing is that the error only occurs when I'm constructing this window, all my other windows are drawn without any problems. Does anyone know what I can do about it, or just what it means? Thanks. Cheers, Claus Jorgensen Niels Bohr Institute
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